Janice, 36, was living in London and was a solicitor and partner in a well-established firm.

She was last seen alive at about 4.15pm at her London office the day before her body was found.

Her car, a silver Alfa Romeo Alfetta, was missing when her body was found. It was later discovered abandoned in Redhill Road, London.

We’ve been conducting a review of the case and are keen to hear from anyone who may have any information about what happened.

– Kelly Knibbs, Major Crime Unit

Sorry, this content isn't available on your device.

Despite an extensive police investigation and a reconstruction on Crimewatch, nobody has ever been convicted of Janice’s murder.

Officers from the Bedfordshire, Cambridgeshire and Hertfordshire Major Crime Unit are conducting a review of the murder, exploring new forensic opportunities and appealing for anyone with information to come forward.

Janice Weston's body was found on the side of the A1 near Brampton. Credit: Cambridgeshire Police

Assistant investigator Kelly Knibbs said: “We’re now 35 years on from Janice’s death, but no unsolved murder investigation is ever closed.

“We’ve been conducting a review of the case and are keen to hear from anyone who may have any information about what happened.

“In addition to any new information, we’re also keen to speak to people who came forward during the original investigation but maybe did not tell us everything they knew, or those who spoke to Crimewatch but not directly to police.”